[SR-Users] parallel forking

[Yuriy Gorlichenko]

Hello. I try to do parallel  fork calls to endpoints that have same
username and different destination URI. Logic of my script:
checking location table for rows with needed account
get info from contact at loop

for every step

check technology (sip or ws)
append_branch with existing destination for this account
rewrite packet with rtpengine to needed technology


forward packets via t_relay



sql_query("ca", "select contact from location where username='$tU'", "ra");
xlog("rows: $dbr(ra=>rows) cols: $dbr(ra=>cols)\n");
 if($dbr(ra=>rows)>0){
$var(i)=0;
 while($var(i)<$dbr(ra=>rows)){
 xlog("L_INFO","SQL query return contact {$dbr(ra=>[$var(i),0])} for {$tU}
at step {$var(i)}\n");
 if ($dbr(ra=>[$var(i),0])=~"transport=ws"){
xlog("L_INFO", "This is a Websocket call to endpoint");
sql_pvquery("ca", "select received from location where
contact='$dbr(ra=>[$var(i),0])'","$var(recieved)");
xlog("L_INFO","SQL query return recieved {$var(recieved)} for {$tU}\n");
$du=$var(recieved);
xlog("L_INFO", "Request going FROM ASTERISK to WS. Destination is {$du}\n");
xlog("L_INFO","Websocket Destination URI is {$var(recieved)} for {$tU}\n");
rtpproxy_manage("froc+SP");
t_on_reply("REPLY_FROM_WS");
append_branch("sip:$tU@$du");
$var(i) = $var(i) + 1;
}
 else
{
xlog("L_INFO", "This is a classic UDP call to endpoint");
 $du="sip:"+$(dbr(ra=>[$var(i),0]){s.select,1,@});
xlog("L_INFO","Classic Destination URI is {$dbr(ra=>[$var(i),0])} for
{$tU}\n");
rtpproxy_manage("co");
t_on_reply("MANAGE_CLASSIC_REPLY");
append_branch("sip:$tU@$du");
$var(i) = $var(i) + 1;
}
#append_branch("sip:$tU@$du");
 }
}
return 1;


So it customised schema of standart example


  seturi("sip:a at example.com");
  append_branch("sip:b at example.com");
  append_branch("sip:c at example.com");
  append_branch("sip:d at example.com");

  t_relay();

At my test I have 2 endpoints with WS and UDP phones (at fist step ir WS
and 2 step it UDP). when I do these steps (at my script) I see packet at
TCP dump and saw that sended only one packet to UDP but body of packet is
WS. Then I saw log of kamailio. I see that at second step packet changed
body to WS body (so strange because other steps before and after goes for
UDP (as at logic of script))

What I need to do for send parallel INVITES to multiple endpoints
correctly? Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20141017/39bbff82/attachment.html>